Submission #1051502

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051502		MilosMilutinovic	Brought Down the Grading Server? (CEOI23_balance)	C++14	0 / 100	42 ms	15436 KiB

balance

#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, s, t;
  cin >> n >> s >> t;
  vector<vector<int>> g(t);
  vector<int> x(n), y(n);
  for (int i = 0; i < n; i++) {
    cin >> x[i] >> y[i];
    --x[i]; --y[i];
    g[x[i]].push_back(i);
    g[y[i]].push_back(i);
  }
  vector<vector<int>> res(n, vector<int>(2));
  vector<bool> was(n);
  vector<bool> rem(n);
  function<void(int)> Dfs = [&](int v) {
    was[v] = true;
    for (int e : g[v]) {
      if (rem[e]) {
        continue;
      }
      rem[e] = true;
      int u = (x[e] ^ y[e] ^ v);
      res[e][0] = v;
      res[e][1] = u;
      if (!was[u]) {
        Dfs(u);
      }
    }
  };
  for (int i = 0; i < n; i++) {
    if (!was[i]) {
      Dfs(i);
    }
  }
  for (int i = 0; i < n; i++) {
    cout << res[i][0] + 1 << " " << res[i][1] + 1 << '\n';
  }
  return 0; 
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 10
• Subtask 2-1: 0 / 15
• Subtask 2-2: 0 / 5
• Subtask 2-3: 0 / 5
• Subtask 3-1: 0 / 15
• Subtask 3-2: 0 / 5
• Subtask 3-3: 0 / 5
• Subtask 4-1: 0 / 20
• Subtask 4-2: 0 / 10
• Subtask 4-3: 0 / 10